240533 has 4 divisors (see below), whose sum is σ = 254700. Its totient is φ = 226368.

The previous prime is 240517. The next prime is 240551. The reversal of 240533 is 335042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335042 = 2 ⋅167521.

It can be written as a sum of positive squares in 2 ways, for example, as 208849 + 31684 = 457^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 240533 - 2⁴ = 240517 is a prime.

It is a super-2 number, since 2×240533² = 115712248178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 14149 = 240533 / (2 + 4 + 0 + 5 + 3 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240533.

It is not an unprimeable number, because it can be changed into a prime (240503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7058 + ... + 7091.

It is an arithmetic number, because the mean of its divisors is an integer number (63675).

2²⁴⁰⁵³³ is an apocalyptic number.

It is an amenable number.

240533 is a deficient number, since it is larger than the sum of its proper divisors (14167).

240533 is a wasteful number, since it uses less digits than its factorization.

240533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14166.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 240533 is about 490.4416377103. The cubic root of 240533 is about 62.1906204086.

Adding to 240533 its reverse (335042), we get a palindrome (575575).

The spelling of 240533 in words is "two hundred forty thousand, five hundred thirty-three".